[INFO] fetching crate dropcheck 0.1.1...
[INFO] testing dropcheck-0.1.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate dropcheck 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate dropcheck 0.1.1
[INFO] finished tweaking crates.io crate dropcheck 0.1.1
[INFO] tweaked toml for crates.io crate dropcheck 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dropcheck 0.1.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0a3d5166c0d968362a5b2532ad28d244206d60d6b475e828ca1f45d46913ee8
[INFO] running `Command { std: "docker" "start" "-a" "a0a3d5166c0d968362a5b2532ad28d244206d60d6b475e828ca1f45d46913ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0a3d5166c0d968362a5b2532ad28d244206d60d6b475e828ca1f45d46913ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a3d5166c0d968362a5b2532ad28d244206d60d6b475e828ca1f45d46913ee8", kill_on_drop: false }`
[INFO] [stdout] a0a3d5166c0d968362a5b2532ad28d244206d60d6b475e828ca1f45d46913ee8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7b0238d475a2d9f5d3bc640869fbc06843ec1b6296e475464c6c11436db1cee
[INFO] running `Command { std: "docker" "start" "-a" "e7b0238d475a2d9f5d3bc640869fbc06843ec1b6296e475464c6c11436db1cee", kill_on_drop: false }`
[INFO] [stderr]    Compiling dropcheck v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/lib.rs:113:46
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("invalid drop count: {}"),
[INFO] [stdout]     |                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("invalid drop count: {}", ...),
[INFO] [stdout]     |                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("{}", "invalid drop count: {}"),
[INFO] [stdout]     |                         +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "e7b0238d475a2d9f5d3bc640869fbc06843ec1b6296e475464c6c11436db1cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b0238d475a2d9f5d3bc640869fbc06843ec1b6296e475464c6c11436db1cee", kill_on_drop: false }`
[INFO] [stdout] e7b0238d475a2d9f5d3bc640869fbc06843ec1b6296e475464c6c11436db1cee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06607ff5dba6f62642d5ca7ff24203212270d7a9d16068acaf27b9e4867a1a90
[INFO] running `Command { std: "docker" "start" "-a" "06607ff5dba6f62642d5ca7ff24203212270d7a9d16068acaf27b9e4867a1a90", kill_on_drop: false }`
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/lib.rs:113:46
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("invalid drop count: {}"),
[INFO] [stdout]     |                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("invalid drop count: {}", ...),
[INFO] [stdout]     |                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("{}", "invalid drop count: {}"),
[INFO] [stdout]     |                         +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dropcheck v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/lib.rs:113:46
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("invalid drop count: {}"),
[INFO] [stdout]     |                                              ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("invalid drop count: {}", ...),
[INFO] [stdout]     |                                                 +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 113 |             _ => panic!("{}", "invalid drop count: {}"),
[INFO] [stdout]     |                         +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "06607ff5dba6f62642d5ca7ff24203212270d7a9d16068acaf27b9e4867a1a90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06607ff5dba6f62642d5ca7ff24203212270d7a9d16068acaf27b9e4867a1a90", kill_on_drop: false }`
[INFO] [stdout] 06607ff5dba6f62642d5ca7ff24203212270d7a9d16068acaf27b9e4867a1a90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c2b09bee08398cec8465226506ae19e78ed20904d89832d02d06b6b21fafb7a0
[INFO] running `Command { std: "docker" "start" "-a" "c2b09bee08398cec8465226506ae19e78ed20904d89832d02d06b6b21fafb7a0", kill_on_drop: false }`
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:113:46
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 113 |             _ => panic!("invalid drop count: {}"),
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                                              ^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]     |
[INFO] [stderr] 113 |             _ => panic!("invalid drop count: {}", ...),
[INFO] [stderr]     |                                                 +++++
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]     |
[INFO] [stderr] 113 |             _ => panic!("{}", "invalid drop count: {}"),
[INFO] [stderr]     |                         +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `dropcheck` (lib) generated 1 warning (run `cargo fix --lib -p dropcheck` to apply 1 suggestion)
[INFO] [stderr] warning: `dropcheck` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dropcheck-28a3a2eeb1079f1c)
[INFO] [stderr]    Doc-tests dropcheck
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - DropCheck::none_dropped (line 212) ... ok
[INFO] [stdout] test src/lib.rs - DropCheck::pair (line 185) ... ok
[INFO] [stdout] test src/lib.rs - DropCheck::all_dropped (line 235) ... ok
[INFO] [stdout] test src/lib.rs - DropToken (line 66) ... ok
[INFO] [stdout] test src/lib.rs - DropToken (line 54) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c2b09bee08398cec8465226506ae19e78ed20904d89832d02d06b6b21fafb7a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b09bee08398cec8465226506ae19e78ed20904d89832d02d06b6b21fafb7a0", kill_on_drop: false }`
[INFO] [stdout] c2b09bee08398cec8465226506ae19e78ed20904d89832d02d06b6b21fafb7a0